FROMLIST: scsi: ufs: ufs-qcom: Enable only lane clocks in lane clock APIs - #1072
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ggiriprasad wants to merge 2 commits into
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FROMLIST: scsi: ufs: ufs-qcom: Enable only lane clocks in lane clock APIs#1072ggiriprasad wants to merge 2 commits into
ggiriprasad wants to merge 2 commits into
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…APIs ufs_qcom_enable_lane_clks() and ufs_qcom_disable_lane_clks() currently use clk_bulk_prepare_enable()/clk_bulk_disable_unprepare() on the entire host->clks array obtained from devm_clk_bulk_get_all(). This array contains all device clocks, not just lane symbol clocks. Since the UFS core framework already manages the non-lane clocks via the setup_clocks callback, the bulk enable/disable in the lane clock APIs resulted in duplicate reference count increments on those shared clocks. The extra enable counts were never balanced by a corresponding disable from the framework's clock gating path, preventing the clock reference counts from reaching zero and ultimately blocking CXO shutdown during low-power states. Fix this by restricting the lane clock APIs to only prepare/enable and disable/unprepare the three lane symbol clocks (tx_lane0_sync_clk, rx_lane0_sync_clk, rx_lane1_sync_clk), leaving the handling of all other clocks to the UFS core framework. The lane clocks are now acquired individually via devm_clk_get() instead of being looked up in the bulk clock array. Link: https://lore.kernel.org/linux-scsi/20260909053944.2827968-1-nitin.rawat@oss.qualcomm.com/T/#meb440ffd6fd2965505bbc86a944250f47a68def5 Signed-off-by: Nitin Rawat <nitin.rawat@oss.qualcomm.com> Signed-off-by: Giri Prasad Goriparthi <giri.goriparthi@oss.qualcomm.com>
ggiriprasad
requested review from
a team,
Komal Bajaj (Komal-Bajaj),
Kaushal Kumar (quic-kaushalk) and
Rajendra (rrnayak)
September 10, 2026 05:38
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Merge Check Failed: No CR Numbers Found Error: No Change Request numbers were found. Please add Change Request numbers to your pull request description in the format CRs-Fixed: 12345 or link GitHub issues that are associated with Change Requests. |
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Enable only lane clocks in lane clock APIs with the fix to remove unused int err variable.